FILE - In this Monday, Nov. 14, 2016, photo, fueling manager Jarid Svraka looks on as he fuels an Alaska Airlines Boeing 737-800 jet with a new, blended alternative jet fuel, at Seattle-Tacoma International Airport in SeaTac, Wash. On Tuesday, Dec. 6, 2016, Alaska Airlines said it has won government approval to buy rival Virgin America after agreeing to reduce its flight-selling partnership with American Airlines. (AP Photo/Elaine Thompson, File)